161085167 has 2 divisors, whose sum is σ = 161085168. Its totient is φ = 161085166.

The previous prime is 161085131. The next prime is 161085191. The reversal of 161085167 is 761580161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161085167 - 2⁶ = 161085103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161085107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80542583 + 80542584.

It is an arithmetic number, because the mean of its divisors is an integer number (80542584).

Almost surely, 2^161085167 is an apocalyptic number.

161085167 is a deficient number, since it is larger than the sum of its proper divisors (1).

161085167 is an equidigital number, since it uses as much as digits as its factorization.

161085167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 161085167 is about 12691.9331466881. The cubic root of 161085167 is about 544.1080908609.

The spelling of 161085167 in words is "one hundred sixty-one million, eighty-five thousand, one hundred sixty-seven".